Hello: I have heard that, in having my oil changed at JiffyLube, I am getting a cheap filter that may have no anti-drain valve. My '98 GMC Jimmy Vortec 4.3 engine (250,000 km; 150,000 miles; in excellent condition) is ticking on cold starts, until it warms up. I have heard that this issue (oil not getting to the lifters?) might be solved by using a higher-quality oil filter with an effective anti-drain valve. Can anyone comment on this, and/or recommend the best filter for me?